The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 2013
Filed:
Aug. 19, 2009
Kenjiro Ueda, Kanagawa, JP;
Tateo Oishi, Saitama, JP;
Kenjiro Ueda, Kanagawa, JP;
Tateo Oishi, Saitama, JP;
Sony Corporation, Tokyo, JP;
Abstract
An information processing device includes: a local memory unit for storing data including an encrypted content; a memory for storing data including key information used to reproduce the encrypted content; and a data processing unit performing a process of writing data to the local memory unit and the memory, and a process of reproducing the encrypted content, wherein the data processing unit performs a process of writing encrypted content downloaded from a server or encrypted content copied from a medium to the local memory unit, and performs a process of decoding the encrypted content or a validity authenticating process using the data stored in the local memory unit and the data stored in the memory when reproducing the encrypted content written to the local memory unit.